Hello Deep Singh,
Here is the Complete Details of the Recruitment Procedure followed by the TCS Company:

Eligibility:
1) You must have 60% avg in your X , XII and also throughout your Engineering Career incl. Optionals.
2) You Shouldn't have more than Two years Gap in your Engineering Career.

Form Fill Up:
Fill Up the Form in the TCS Careers Site stating "Direct Applicant" Link.

Recruitment Process:
TheTCS Recruitment Process varies from time to time, Depending on the Availability of the Time and Strength of the Candidates, etc. So here is a General Process usually Carried out, Out of which one /two might not be Dispatched.
1) Written Test
2) Group Discussion (GD)
3) Psychometric Test
4) Technical Interview
5) Management Interview and HR Interview

Coming To the GD, Certain Topics like (Factual, Caontroversial, Abstract and Case studies) which are likely to be Discussed.

Example Of Case Sudies:

Code:

A king of an Arab country is approached by a foreign mining company with a contract. Presently, the country earns its revenues through tourism.
The contract if signed will initiate mining near the coastal regions which will affect tourism. The opposition party is very powerful and if the contract is not signed, they will initiate a coup.
What should the king do?

You can Refer a Very Good Book To Crack Placements. Have a Look:


For More Details, Visit the Official Site here --> TCS Career Home Page
Cheers n Regards,

Nik!